include/drm/vmwgfx_drm.h

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
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  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef __VMWGFX_DRM_H__
  29 #define __VMWGFX_DRM_H__
  30
  31 #define DRM_VMW_MAX_SURFACE_FACES 6
  32 #define DRM_VMW_MAX_MIP_LEVELS 24
  33
  34 #define DRM_VMW_EXT_NAME_LEN 128
  35
  36 #define DRM_VMW_GET_PARAM            0
  37 #define DRM_VMW_ALLOC_DMABUF         1
  38 #define DRM_VMW_UNREF_DMABUF         2
  39 #define DRM_VMW_CURSOR_BYPASS        3
  40 /* guarded by DRM_VMW_PARAM_NUM_STREAMS != 0*/
  41 #define DRM_VMW_CONTROL_STREAM       4
  42 #define DRM_VMW_CLAIM_STREAM         5
  43 #define DRM_VMW_UNREF_STREAM         6
  44 /* guarded by DRM_VMW_PARAM_3D == 1 */
  45 #define DRM_VMW_CREATE_CONTEXT       7
  46 #define DRM_VMW_UNREF_CONTEXT        8
  47 #define DRM_VMW_CREATE_SURFACE       9
  48 #define DRM_VMW_UNREF_SURFACE        10
  49 #define DRM_VMW_REF_SURFACE          11
  50 #define DRM_VMW_EXECBUF              12
  51 #define DRM_VMW_FIFO_DEBUG           13
  52 #define DRM_VMW_FENCE_WAIT           14
  53
  54
  55 /*************************************************************************/
  56 /**
  57  * DRM_VMW_GET_PARAM - get device information.
  58  *
  59  * DRM_VMW_PARAM_FIFO_OFFSET:
  60  * Offset to use to map the first page of the FIFO read-only.
  61  * The fifo is mapped using the mmap() system call on the drm device.
  62  *
  63  * DRM_VMW_PARAM_OVERLAY_IOCTL:
  64  * Does the driver support the overlay ioctl.
  65  */
  66
  67 #define DRM_VMW_PARAM_NUM_STREAMS      0
  68 #define DRM_VMW_PARAM_NUM_FREE_STREAMS 1
  69 #define DRM_VMW_PARAM_3D               2
  70 #define DRM_VMW_PARAM_FIFO_OFFSET      3
  71 #define DRM_VMW_PARAM_HW_CAPS          4
  72 #define DRM_VMW_PARAM_FIFO_CAPS        5
  73
  74 /**
  75  * struct drm_vmw_getparam_arg
  76  *
  77  * @value: Returned value. //Out
  78  * @param: Parameter to query. //In.
  79  *
  80  * Argument to the DRM_VMW_GET_PARAM Ioctl.
  81  */
  82
  83 struct drm_vmw_getparam_arg {
  84         uint64_t value;
  85         uint32_t param;
  86         uint32_t pad64;
  87 };
  88
  89 /*************************************************************************/
  90 /**
  91  * DRM_VMW_EXTENSION - Query device extensions.
  92  */
  93
  94 /**
  95  * struct drm_vmw_extension_rep
  96  *
  97  * @exists: The queried extension exists.
  98  * @driver_ioctl_offset: Ioctl number of the first ioctl in the extension.
  99  * @driver_sarea_offset: Offset to any space in the DRI SAREA
 100  * used by the extension.
 101  * @major: Major version number of the extension.
 102  * @minor: Minor version number of the extension.
 103  * @pl: Patch level version number of the extension.
 104  *
 105  * Output argument to the DRM_VMW_EXTENSION Ioctl.
 106  */
 107
 108 struct drm_vmw_extension_rep {
 109         int32_t exists;
 110         uint32_t driver_ioctl_offset;
 111         uint32_t driver_sarea_offset;
 112         uint32_t major;
 113         uint32_t minor;
 114         uint32_t pl;
 115         uint32_t pad64;
 116 };
 117
 118 /**
 119  * union drm_vmw_extension_arg
 120  *
 121  * @extension - Ascii name of the extension to be queried. //In
 122  * @rep - Reply as defined above. //Out
 123  *
 124  * Argument to the DRM_VMW_EXTENSION Ioctl.
 125  */
 126
 127 union drm_vmw_extension_arg {
 128         char extension[DRM_VMW_EXT_NAME_LEN];
 129         struct drm_vmw_extension_rep rep;
 130 };
 131
 132 /*************************************************************************/
 133 /**
 134  * DRM_VMW_CREATE_CONTEXT - Create a host context.
 135  *
 136  * Allocates a device unique context id, and queues a create context command
 137  * for the host. Does not wait for host completion.
 138  */
 139
 140 /**
 141  * struct drm_vmw_context_arg
 142  *
 143  * @cid: Device unique context ID.
 144  *
 145  * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
 146  * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
 147  */
 148
 149 struct drm_vmw_context_arg {
 150         int32_t cid;
 151         uint32_t pad64;
 152 };
 153
 154 /*************************************************************************/
 155 /**
 156  * DRM_VMW_UNREF_CONTEXT - Create a host context.
 157  *
 158  * Frees a global context id, and queues a destroy host command for the host.
 159  * Does not wait for host completion. The context ID can be used directly
 160  * in the command stream and shows up as the same context ID on the host.
 161  */
 162
 163 /*************************************************************************/
 164 /**
 165  * DRM_VMW_CREATE_SURFACE - Create a host suface.
 166  *
 167  * Allocates a device unique surface id, and queues a create surface command
 168  * for the host. Does not wait for host completion. The surface ID can be
 169  * used directly in the command stream and shows up as the same surface
 170  * ID on the host.
 171  */
 172
 173 /**
 174  * struct drm_wmv_surface_create_req
 175  *
 176  * @flags: Surface flags as understood by the host.
 177  * @format: Surface format as understood by the host.
 178  * @mip_levels: Number of mip levels for each face.
 179  * An unused face should have 0 encoded.
 180  * @size_addr: Address of a user-space array of sruct drm_vmw_size
 181  * cast to an uint64_t for 32-64 bit compatibility.
 182  * The size of the array should equal the total number of mipmap levels.
 183  * @shareable: Boolean whether other clients (as identified by file descriptors)
 184  * may reference this surface.
 185  * @scanout: Boolean whether the surface is intended to be used as a
 186  * scanout.
 187  *
 188  * Input data to the DRM_VMW_CREATE_SURFACE Ioctl.
 189  * Output data from the DRM_VMW_REF_SURFACE Ioctl.
 190  */
 191
 192 struct drm_vmw_surface_create_req {
 193         uint32_t flags;
 194         uint32_t format;
 195         uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
 196         uint64_t size_addr;
 197         int32_t shareable;
 198         int32_t scanout;
 199 };
 200
 201 /**
 202  * struct drm_wmv_surface_arg
 203  *
 204  * @sid: Surface id of created surface or surface to destroy or reference.
 205  *
 206  * Output data from the DRM_VMW_CREATE_SURFACE Ioctl.
 207  * Input argument to the DRM_VMW_UNREF_SURFACE Ioctl.
 208  * Input argument to the DRM_VMW_REF_SURFACE Ioctl.
 209  */
 210
 211 struct drm_vmw_surface_arg {
 212         int32_t sid;
 213         uint32_t pad64;
 214 };
 215
 216 /**
 217  * struct drm_vmw_size ioctl.
 218  *
 219  * @width - mip level width
 220  * @height - mip level height
 221  * @depth - mip level depth
 222  *
 223  * Description of a mip level.
 224  * Input data to the DRM_WMW_CREATE_SURFACE Ioctl.
 225  */
 226
 227 struct drm_vmw_size {
 228         uint32_t width;
 229         uint32_t height;
 230         uint32_t depth;
 231         uint32_t pad64;
 232 };
 233
 234 /**
 235  * union drm_vmw_surface_create_arg
 236  *
 237  * @rep: Output data as described above.
 238  * @req: Input data as described above.
 239  *
 240  * Argument to the DRM_VMW_CREATE_SURFACE Ioctl.
 241  */
 242
 243 union drm_vmw_surface_create_arg {
 244         struct drm_vmw_surface_arg rep;
 245         struct drm_vmw_surface_create_req req;
 246 };
 247
 248 /*************************************************************************/
 249 /**
 250  * DRM_VMW_REF_SURFACE - Reference a host surface.
 251  *
 252  * Puts a reference on a host surface with a give sid, as previously
 253  * returned by the DRM_VMW_CREATE_SURFACE ioctl.
 254  * A reference will make sure the surface isn't destroyed while we hold
 255  * it and will allow the calling client to use the surface ID in the command
 256  * stream.
 257  *
 258  * On successful return, the Ioctl returns the surface information given
 259  * in the DRM_VMW_CREATE_SURFACE ioctl.
 260  */
 261
 262 /**
 263  * union drm_vmw_surface_reference_arg
 264  *
 265  * @rep: Output data as described above.
 266  * @req: Input data as described above.
 267  *
 268  * Argument to the DRM_VMW_REF_SURFACE Ioctl.
 269  */
 270
 271 union drm_vmw_surface_reference_arg {
 272         struct drm_vmw_surface_create_req rep;
 273         struct drm_vmw_surface_arg req;
 274 };
 275
 276 /*************************************************************************/
 277 /**
 278  * DRM_VMW_UNREF_SURFACE - Unreference a host surface.
 279  *
 280  * Clear a reference previously put on a host surface.
 281  * When all references are gone, including the one implicitly placed
 282  * on creation,
 283  * a destroy surface command will be queued for the host.
 284  * Does not wait for completion.
 285  */
 286
 287 /*************************************************************************/
 288 /**
 289  * DRM_VMW_EXECBUF
 290  *
 291  * Submit a command buffer for execution on the host, and return a
 292  * fence sequence that when signaled, indicates that the command buffer has
 293  * executed.
 294  */
 295
 296 /**
 297  * struct drm_vmw_execbuf_arg
 298  *
 299  * @commands: User-space address of a command buffer cast to an uint64_t.
 300  * @command-size: Size in bytes of the command buffer.
 301  * @throttle-us: Sleep until software is less than @throttle_us
 302  * microseconds ahead of hardware. The driver may round this value
 303  * to the nearest kernel tick.
 304  * @fence_rep: User-space address of a struct drm_vmw_fence_rep cast to an
 305  * uint64_t.
 306  * @version: Allows expanding the execbuf ioctl parameters without breaking
 307  * backwards compatibility, since user-space will always tell the kernel
 308  * which version it uses.
 309  * @flags: Execbuf flags. None currently.
 310  *
 311  * Argument to the DRM_VMW_EXECBUF Ioctl.
 312  */
 313
 314 #define DRM_VMW_EXECBUF_VERSION 0
 315
 316 struct drm_vmw_execbuf_arg {
 317         uint64_t commands;
 318         uint32_t command_size;
 319         uint32_t throttle_us;
 320         uint64_t fence_rep;
 321          uint32_t version;
 322          uint32_t flags;
 323 };
 324
 325 /**
 326  * struct drm_vmw_fence_rep
 327  *
 328  * @fence_seq: Fence sequence associated with a command submission.
 329  * @error: This member should've been set to -EFAULT on submission.
 330  * The following actions should be take on completion:
 331  * error == -EFAULT: Fence communication failed. The host is synchronized.
 332  * Use the last fence id read from the FIFO fence register.
 333  * error != 0 && error != -EFAULT:
 334  * Fence submission failed. The host is synchronized. Use the fence_seq member.
 335  * error == 0: All is OK, The host may not be synchronized.
 336  * Use the fence_seq member.
 337  *
 338  * Input / Output data to the DRM_VMW_EXECBUF Ioctl.
 339  */
 340
 341 struct drm_vmw_fence_rep {
 342         uint64_t fence_seq;
 343         int32_t error;
 344         uint32_t pad64;
 345 };
 346
 347 /*************************************************************************/
 348 /**
 349  * DRM_VMW_ALLOC_DMABUF
 350  *
 351  * Allocate a DMA buffer that is visible also to the host.
 352  * NOTE: The buffer is
 353  * identified by a handle and an offset, which are private to the guest, but
 354  * useable in the command stream. The guest kernel may translate these
 355  * and patch up the command stream accordingly. In the future, the offset may
 356  * be zero at all times, or it may disappear from the interface before it is
 357  * fixed.
 358  *
 359  * The DMA buffer may stay user-space mapped in the guest at all times,
 360  * and is thus suitable for sub-allocation.
 361  *
 362  * DMA buffers are mapped using the mmap() syscall on the drm device.
 363  */
 364
 365 /**
 366  * struct drm_vmw_alloc_dmabuf_req
 367  *
 368  * @size: Required minimum size of the buffer.
 369  *
 370  * Input data to the DRM_VMW_ALLOC_DMABUF Ioctl.
 371  */
 372
 373 struct drm_vmw_alloc_dmabuf_req {
 374         uint32_t size;
 375         uint32_t pad64;
 376 };
 377
 378 /**
 379  * struct drm_vmw_dmabuf_rep
 380  *
 381  * @map_handle: Offset to use in the mmap() call used to map the buffer.
 382  * @handle: Handle unique to this buffer. Used for unreferencing.
 383  * @cur_gmr_id: GMR id to use in the command stream when this buffer is
 384  * referenced. See not above.
 385  * @cur_gmr_offset: Offset to use in the command stream when this buffer is
 386  * referenced. See note above.
 387  *
 388  * Output data from the DRM_VMW_ALLOC_DMABUF Ioctl.
 389  */
 390
 391 struct drm_vmw_dmabuf_rep {
 392         uint64_t map_handle;
 393         uint32_t handle;
 394         uint32_t cur_gmr_id;
 395         uint32_t cur_gmr_offset;
 396         uint32_t pad64;
 397 };
 398
 399 /**
 400  * union drm_vmw_dmabuf_arg
 401  *
 402  * @req: Input data as described above.
 403  * @rep: Output data as described above.
 404  *
 405  * Argument to the DRM_VMW_ALLOC_DMABUF Ioctl.
 406  */
 407
 408 union drm_vmw_alloc_dmabuf_arg {
 409         struct drm_vmw_alloc_dmabuf_req req;
 410         struct drm_vmw_dmabuf_rep rep;
 411 };
 412
 413 /*************************************************************************/
 414 /**
 415  * DRM_VMW_UNREF_DMABUF - Free a DMA buffer.
 416  *
 417  */
 418
 419 /**
 420  * struct drm_vmw_unref_dmabuf_arg
 421  *
 422  * @handle: Handle indicating what buffer to free. Obtained from the
 423  * DRM_VMW_ALLOC_DMABUF Ioctl.
 424  *
 425  * Argument to the DRM_VMW_UNREF_DMABUF Ioctl.
 426  */
 427
 428 struct drm_vmw_unref_dmabuf_arg {
 429         uint32_t handle;
 430         uint32_t pad64;
 431 };
 432
 433 /*************************************************************************/
 434 /**
 435  * DRM_VMW_FIFO_DEBUG - Get last FIFO submission.
 436  *
 437  * This IOCTL copies the last FIFO submission directly out of the FIFO buffer.
 438  */
 439
 440 /**
 441  * struct drm_vmw_fifo_debug_arg
 442  *
 443  * @debug_buffer: User space address of a debug_buffer cast to an uint64_t //In
 444  * @debug_buffer_size: Size in bytes of debug buffer //In
 445  * @used_size: Number of bytes copied to the buffer // Out
 446  * @did_not_fit: Boolean indicating that the fifo contents did not fit. //Out
 447  *
 448  * Argument to the DRM_VMW_FIFO_DEBUG Ioctl.
 449  */
 450
 451 struct drm_vmw_fifo_debug_arg {
 452         uint64_t debug_buffer;
 453         uint32_t debug_buffer_size;
 454         uint32_t used_size;
 455         int32_t did_not_fit;
 456         uint32_t pad64;
 457 };
 458
 459 struct drm_vmw_fence_wait_arg {
 460         uint64_t sequence;
 461         uint64_t kernel_cookie;
 462         int32_t cookie_valid;
 463         int32_t pad64;
 464 };
 465
 466 /*************************************************************************/
 467 /**
 468  * DRM_VMW_CONTROL_STREAM - Control overlays, aka streams.
 469  *
 470  * This IOCTL controls the overlay units of the svga device.
 471  * The SVGA overlay units does not work like regular hardware units in
 472  * that they do not automaticaly read back the contents of the given dma
 473  * buffer. But instead only read back for each call to this ioctl, and
 474  * at any point between this call being made and a following call that
 475  * either changes the buffer or disables the stream.
 476  */
 477
 478 /**
 479  * struct drm_vmw_rect
 480  *
 481  * Defines a rectangle. Used in the overlay ioctl to define
 482  * source and destination rectangle.
 483  */
 484
 485 struct drm_vmw_rect {
 486         int32_t x;
 487         int32_t y;
 488         uint32_t w;
 489         uint32_t h;
 490 };
 491
 492 /**
 493  * struct drm_vmw_control_stream_arg
 494  *
 495  * @stream_id: Stearm to control
 496  * @enabled: If false all following arguments are ignored.
 497  * @handle: Handle to buffer for getting data from.
 498  * @format: Format of the overlay as understood by the host.
 499  * @width: Width of the overlay.
 500  * @height: Height of the overlay.
 501  * @size: Size of the overlay in bytes.
 502  * @pitch: Array of pitches, the two last are only used for YUV12 formats.
 503  * @offset: Offset from start of dma buffer to overlay.
 504  * @src: Source rect, must be within the defined area above.
 505  * @dst: Destination rect, x and y may be negative.
 506  *
 507  * Argument to the DRM_VMW_CONTROL_STREAM Ioctl.
 508  */
 509
 510 struct drm_vmw_control_stream_arg {
 511         uint32_t stream_id;
 512         uint32_t enabled;
 513
 514         uint32_t flags;
 515         uint32_t color_key;
 516
 517         uint32_t handle;
 518         uint32_t offset;
 519         int32_t format;
 520         uint32_t size;
 521         uint32_t width;
 522         uint32_t height;
 523         uint32_t pitch[3];
 524
 525         uint32_t pad64;
 526         struct drm_vmw_rect src;
 527         struct drm_vmw_rect dst;
 528 };
 529
 530 /*************************************************************************/
 531 /**
 532  * DRM_VMW_CURSOR_BYPASS - Give extra information about cursor bypass.
 533  *
 534  */
 535
 536 #define DRM_VMW_CURSOR_BYPASS_ALL    (1 << 0)
 537 #define DRM_VMW_CURSOR_BYPASS_FLAGS       (1)
 538
 539 /**
 540  * struct drm_vmw_cursor_bypass_arg
 541  *
 542  * @flags: Flags.
 543  * @crtc_id: Crtc id, only used if DMR_CURSOR_BYPASS_ALL isn't passed.
 544  * @xpos: X position of cursor.
 545  * @ypos: Y position of cursor.
 546  * @xhot: X hotspot.
 547  * @yhot: Y hotspot.
 548  *
 549  * Argument to the DRM_VMW_CURSOR_BYPASS Ioctl.
 550  */
 551
 552 struct drm_vmw_cursor_bypass_arg {
 553         uint32_t flags;
 554         uint32_t crtc_id;
 555         int32_t xpos;
 556         int32_t ypos;
 557         int32_t xhot;
 558         int32_t yhot;
 559 };
 560
 561 /*************************************************************************/
 562 /**
 563  * DRM_VMW_CLAIM_STREAM - Claim a single stream.
 564  */
 565
 566 /**
 567  * struct drm_vmw_context_arg
 568  *
 569  * @stream_id: Device unique context ID.
 570  *
 571  * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
 572  * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
 573  */
 574
 575 struct drm_vmw_stream_arg {
 576         uint32_t stream_id;
 577         uint32_t pad64;
 578 };
 579
 580 /*************************************************************************/
 581 /**
 582  * DRM_VMW_UNREF_STREAM - Unclaim a stream.
 583  *
 584  * Return a single stream that was claimed by this process. Also makes
 585  * sure that the stream has been stopped.
 586  */
 587
 588 #endif